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A
working TV remote is a security blanket that allows us the peace of
mind of knowing that we don't have to get up unless nature calls or the
house catches on fire. People are more likely to spend more time and
energy to fix their TV remote than to get up and change the channel.
There are a number of simple fixes that can ease your mind when your TV
remote is not working.
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Difficulty: Easy
Instructions
Things You'll Need:

New Batteries

Check
the batteries. Make sure the batteries are in correctly and, if they
are, replace the batteries. If the batteries are dead or are not in
correctly, your remote will not respond and the LED light will not
illuminate when a button is pressed. Make sure the TV is plugged in. An
unplugged TV will not respond to any remote.

Check
the selected input to make sure the remote is set on the TV and not
some other device programmed into the remote, such as your DVD player,
VCR, or video game console.

Reprogram the sync code. If you are using a universal remote, it may have deprogrammed, leaving the remote and TV out of sync.

Unplug
the TV for a few minutes. During a power surge, a TV can become
"confused." Unplugging it for a few minutes will give the TV the break
it needs to sort everything out and work properly with your remote.

Use
another remote on the TV. Program a universal remote to work with the
TV. If the TV does not respond, the problem is likely with the TV and
not the remote control.

Over Current Protection
Pin 1 of IC951 is also the Over Current Protect input.
The internal FET.s ground return is at pin 2 of
the IC. The voltage drop across R955 and R956
indicates the FET.s current, and is coupled through
R953 to pin 1 of the IC. The Over Current Protect
circuit is activated if the voltage at pin 1 of the IC
exceeds 1.35 volts.
Stabilization and rough regulation are provided by
feedback from pin 3 of T951 to pin 1 of the IC. Fine
regulation feedback is from a secondary supply,
through the Photo Coupler, PC951, to pin 1 of IC951.
Its possible that Diode D953 is leaky allowing the voltage to rise on pin 1 of the IC

If the channel and volume visual display was not set up on the menu to display on screen , neither will show up even if either the remote or set front button are used.
Make sure that the tv button is selected on the remote to access the menu .If that does not work ,then either the batteries are dead or the remote is dead.If it is you will need a new remote,sadly.
Then you can press the m button , select sound and then select "display volume" and check "during adjustment". The channel display settings are found on "features" from the main menu.
Hope this helps.